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Auto opening latch for safely return to work

Jham Latch.png

The COVID-19 pandemic has caused hundreds of thousands of workers to work from home globally. The Product Design class (ME549) at UW-Madison worked with product design consulting company - Delve to deliver product design projects that help workers to return to work safely. I worked with 3 engineering graduate students as a team and was in charge of design research and hardware user experience design.

Our team delivered the prototype - Jham Latch allows workplaces to implement hands-free opening door latches to existing doors without any change to door frames, decreasing the spread of COVID 19 and other illnesses through commonly touched door handles. 

Role

Research, UX Design

Duration

3 months

Process

Survey, secondary research, persona, storyboard, user journey, prototyping, and CPT testing

Teammates

Mitchell Mikulsky (Project Manager)              Ahmed Hembel (Electrical Engineering)

Joshua Lemiesz (Mechanical Engineering)   

Problem Statement

How might we help employers and employees implement safer and more effective return to work practices?

User story

Those in charge of implementing return to work practices need a way to prevent employees from contracting COVID-19 from commonly touched, non-locking,  latching door handles in order to make employees feel comfortable within common workplace areas as well as prevent COVID from propagating through the environment.

Discovery

Talking to users

We conducted secondary research, interviewed key stakeholders across different industries, and sent out a survey to gain an understanding of how the companies were dealing with return to work.

Survey

The survey result indicated companies have been doing a great number of safety measures for employees who have to go back to the office.

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Current Solutions

Learning from existing products to understand the patterns of how companies are aiming to reduce transmitting virus in the public

current solutions of return to work

Stakeholder Interviews

After the interviews, we consolidated the responses is to find the common needs and pain points from a higher level that our value proposition can focus on. We started grouping similar responses and give names to these categories from bottom to top. For instance, we found the common concerns that our interviewees have are the meeting room closed space, interaction, inconvenience due to measures, and if people are sick. 

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Persona & User Journey

After clustering the data, with the help of and mind map, we can easily identify the main needs of our users and sketch out a user journey map with quotes from the interviews. Together, we used persona and user journey as our principles during our ideation process to keep in mind are the users' needs and goals.

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Design Goals

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Design Process

The ideation phase included brainstorming, divergent thinking and convergent thinking.

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Initial Concepts

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automated surface cleaner
mask washing machine
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Refined Concepts

We couldn't decide which concepts to move forward as they are all very different. We then agreed on refining the concepts that reflect our core users' needs which is a commonly touched surface - door latch and handle. We walked through the same process of divergent and convergent thinking. Furthermore, we created storyboards for the concept product testing (CPT) with users we interviewed.

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We decided to move forward with the Automated Door Latch, because it is the most desirable concept with 95% of participants indicated they are willing to use it every time to enter/exit the door.

“Good because hands might be occupied, so it's very convenient! The concept could be used after COVID too."

Iteration - Jham Latch

Version 1 Mock-up

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initial mock up.png

The JHAM Latch provides a touch-free means of opening the door when used in combination with the foot or forearm pull devices. Every time the door is used, the touch prevention counter increases, giving the user a sense of comfort knowing they both prevented themselves from touching a surface that a certain amount of people have touched as well as preventing the spread of the virus to their coworkers. 

Intuitive Experience

Design Decision #1

Motion Sensing

The motion sensor icon on the left conveys to the user that the device is motion activated. The sensor on the front can be triggered by holding your hand in front of the sensor or by standing in front of it.

motion sensing.png

Design Decision #2

Showing the progress of opening latch

As the motion is detected, the green light progress bar grows, showing the users visually that their request is known and being completed. This ensures they open the door once the latch is open as well as they know the motion sensor is working.

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Human Factors

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Design Decision #1

The collapsible and expandable doorknob design avoids users’ natural behaviors of touching the doorknob.

The design features an extendable door handle. The handle extends outward when pushed in and when turned, manually opens the door latch. This encourages the use of the motion sensor and prevents users from grabbing the doorknob to open the door. Additionally, the knob provides the means to open the door in case of an emergency.

Traction

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Takeaways

It was my first time working on a hardware product design. There were many different things to consider in terms of user experience. I took the lead in design research and my teammates relied on my expertise in user experience. It was an interesting experience to work with mechanical engineers and electrical engineers. Because they had little background in product design and not to mention using the design thinking method in product design.

Internal communication drove the project! At the beginning of the project, we had a hard time reaching a consensus. Old-school engineers tend to jump to conclusions or directly jump to solutions instead of going through the research and ideation process. Through constant communication and encouragement of thinking from a UX standpoint, it took me quite some effort to finally be on the same page with them. It is easier to speak their language instead of asking them to understand your jargon.

Copyright © 2025 Holly Chen. All Rights Reserved.

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